CN208596907U - A kind of payingoff construction spanning the transmission line road lives across system - Google Patents
A kind of payingoff construction spanning the transmission line road lives across system Download PDFInfo
- Publication number
- CN208596907U CN208596907U CN201821323380.2U CN201821323380U CN208596907U CN 208596907 U CN208596907 U CN 208596907U CN 201821323380 U CN201821323380 U CN 201821323380U CN 208596907 U CN208596907 U CN 208596907U
- Authority
- CN
- China
- Prior art keywords
- rope
- dimensional
- ground wire
- surmounting
- lives
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 29
- 238000010276 construction Methods 0.000 title claims abstract description 27
- 239000004020 conductor Substances 0.000 claims abstract description 34
- 238000009413 insulation Methods 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 229920002994 synthetic fiber Polymers 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003012 network analysis Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Electric Cable Installation (AREA)
Abstract
System is lived across the utility model discloses a kind of payingoff construction spanning the transmission line road, including interim pole, bearing rope, distance-detecting rope, it is unrestrained rope, camera and it is several it is three-dimensional cross over unit, it is three-dimensional to include two ground wire crossing frames and three conductor overhead supporter for surmounting across unit, two ground wire crossing frames are arranged side by side, the lower section of two ground wire crossing frames is arranged side by side in three conductor overhead supporter for surmounting pair, by insulation connecting-rods with constant lengh connection between adjacent conductor overhead supporter for surmounting, connected between adjacent ground wire crossing frame and conductor overhead supporter for surmounting by insulated telescopic rods；It is adjacent it is three-dimensional to be formed three-dimensional across net across being connected between unit by distance-detecting rope, interim pole is fixed on shaft tower, and the both ends of bearing rope are fixed on interim pole, three-dimensional across net for carrying, three-dimensional that unrestrained rope is respectively set across the two sides netted；Camera is installed in bearing rope for Real-time Feedback.
Description
Technical field
The utility model belongs to power circuit defence line construction field, and in particular to a kind of payingoff construction spanning the transmission line road
Live across system.
Background technique
Spanning the transmission line mainly using setting up the arrangement and method for construction such as crossing frame or temporary interruption block, these methods to manpower,
It is more that material and Work tool put into big, low efficiency, deficiency in economic performance, risk factor.And as power customer is to power supply reliability
It is required that raising for social and economic activities importance of raising and electric power safety, application power failure difficulty increases, cost and peace
Full blast nearly also greatly increases, especially the transmission line of electricity of the 220kV and 500kV or more of power grid main grid structure, if stopped for a long time
Electricity can not only threaten to the stabilization of power grids, and loss and the shadow of various aspects will be caused to industrial and agricultural production, nation-building
It rings.So traditional power cut construction method has increasingly been unable to satisfy the demand of high-quality reliable power supply.
Utility model content
Both do not have to set up crossing frame living across without power failure block the purpose of this utility model is to provide a kind of
System does not influence the power supply for being spanned power circuit while reducing payingoff construction cost.
This payingoff construction spanning the transmission line road provided by the utility model lives across system, including interim pole,
Bearing rope, distance-detecting rope, unrestrained rope, camera and it is several it is three-dimensional cross over unit, it is three-dimensional across unit include two ground wires across
More frame and three conductor overhead supporter for surmounting, two ground wire crossing frames are arranged side by side, and are arranged side by side on two in three conductor overhead supporter for surmounting pair
It adjacent ground wire crossing frame and is led by insulation connecting-rods with constant lengh connection between adjacent conductor overhead supporter for surmounting the lower section of ground wire crossing frame
It is connected between line crossing frame by insulated telescopic rods；Adjacent three-dimensional cross between unit connects to form solid by distance-detecting rope
Formula crosses over net, and interim pole is fixed on shaft tower, and the both ends of bearing rope are fixed on interim pole, for carrying three-dimensional leap
Unrestrained rope is respectively set in net, the three-dimensional two sides across net；Camera is installed in bearing rope for Real-time Feedback.
The both ends of the insulation connecting-rods with constant lengh and insulated telescopic rods are connected separately with hook.
The ground wire crossing frame and conductor overhead supporter for surmounting include that two traveling wheels, a leading block and two are described exhausted
Edge connecting-rods with constant lengh, two traveling wheels pass through the two sides that insulation connecting-rods with constant lengh is symmetrically connected to leading block respectively.
The two sides of the ground wire crossing frame leading block are symmetrically connected with four closed links, are respectively used to be connected to institute
State insulation connecting-rods with constant lengh and insulated telescopic rods；The two sides of the conductor overhead supporter for surmounting leading block symmetrically connect two closed links,
It is respectively used to the insulation connecting-rods with constant lengh.
Closed link there are two being all connected on the traveling wheel of the ground wire crossing frame and conductor overhead supporter for surmounting, is respectively used to
Connect the insulation connecting-rods with constant lengh and insulated telescopic rods.
The bearing rope is woven using PBO material, described three-dimensional across net for carrying.
The distance-detecting rope is cotton synthetic fibre rope, is connected between the ground wire crossing frame and the traveling wheel of conductor overhead supporter for surmounting
Between leading block.
The interim pole has four, is divided to two groups, is connected on the interim pole of one of every group for unfolding ground wire and leading
The hanging wire pulley of line.
Described this system further includes intelligence control system, and intelligence control system includes part of data acquisition, data transfer part
Point and intelligent control part；Part of data acquisition includes dragger, tensioner state data acquisition module, is led, ground wire distraction force
Data acquisition module, stringing walking plate position data acquisition module and Crossover phase video data acquiring module；By the camera
Video data is sent in data transmission module.Data transmission module sends data to intelligent control part point by wireless network
Analysis processing.
The utility model is made of three-dimensional across unit ground wire crossing frame and conductor overhead supporter for surmounting, has three-dimensional across unit
Composition crosses over net, and the three-dimensional quantity across unit can be selected according to the width of Crossover phase.The present invention has versatility,
It may span across different width.The setting of intelligence control system keeps entire payingoff construction state whole controllable, is especially crossing over band
Real-time video monitoring can be realized when electric line, and Real-time Feedback is carried out to conducting wire and ground wire arc sag and tension, it is ensured that lived across
Construction safety.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model one embodiment.
Fig. 2 is that Fig. 1 neutral body formula crosses over assembling enlarged diagram of the unit on interim pole.
Fig. 3 is the enlarged structure schematic diagram of ground wire crossing frame.
Fig. 4 is the enlarged structure schematic diagram of conductor overhead supporter for surmounting.
Fig. 5 is that the present embodiment lives across the schematic diagram after being spanned alive circuit.
The intelligence control system operation principle schematic diagram of Fig. 6 the present embodiment.
Fig. 7 is the control panel schematic diagram of control system.
Fig. 8 is control area calculation flow chart.
Specific embodiment
As shown in Figure 1 and Figure 2, this payingoff construction spanning the transmission line road disclosed in the present embodiment lives across system, packet
It includes three-dimensional across unit 1, interim pole 2, bearing rope 3, distance-detecting rope 4 (not drawn in Fig. 1 complete), 5 and camera (Fig. 1 of unrestrained rope
In be not drawn into).
The three-dimensional three-dimensional on interim pole 2 there are two being respectively arranged in across net of system is lived across shown in Fig. 1
Across unit 1.Other embodiments select the three-dimensional quantity across unit across width according to practical.
Fig. 2 is a three-dimensional assembling enlarged diagram across unit on interim pole.
Figure it is seen that a three-dimensional unit 1 of crossing over includes two ground wire crossing frames 11 and three conductor overhead supporter for surmounting
12, two ground wire crossing frames 11 are arranged side by side, and are arranged side by side on two ground wire crossing frames 11 in three 12 pairs of conductor overhead supporter for surmounting
Lower section.Can be seen that interim pole in conjunction with Fig. 1 and Fig. 2 has four, is divided to two groups of ground for being respectively arranged in span line two sides shaft tower
Appropriate location below line bracket and below cross-arm is connected with ground wire and conducting wire hanging wire pulley on one of every group of interim pole
GXHL。
From figs. 3 and 4 it can be seen that ground wire crossing frame 11 and conductor overhead supporter for surmounting 12 include two traveling wheel XZL, one
A leading block DXL and two thoroughly does away with edge connecting-rods with constant lengh DCG, and two traveling wheel XZL pass through insulation connecting-rods with constant lengh DCG respectively and symmetrically connect
In the two sides of leading block DXL.
From figures 2 and 3, it will be seen that the two sides of 11 leading block DXL of ground wire crossing frame be symmetrically connected with four it is closed
Link GH is respectively used to connection insulation connecting-rods with constant lengh DCG and insulated telescopic rods SSG.It can be seen that conductor overhead supporter for surmounting from Fig. 2 and Fig. 4
The two sides of 12 leading block DXL symmetrically connect two closed link GH, are respectively used to insulation connecting-rods with constant lengh DCG.
It can be seen that in conjunction with Fig. 2 to Fig. 4 and be all connected on the traveling wheel XZL of ground wire crossing frame 11 and conductor overhead supporter for surmounting 12
There are two closed link GH, are respectively used to connection insulation connecting-rods with constant lengh DCG and insulated telescopic rods SSG.
Figure it is seen that passing through insulation connecting-rods with constant lengh DCG connection, adjacent ground wire between adjacent conductor overhead supporter for surmounting 12
It is connected between crossing frame 11 and conductor overhead supporter for surmounting 12 by insulated telescopic rods SSG.
It will be seen from figure 1 that bearing rope 3 shares ten, the two sides setting of ground wire and conducting wire is corresponded respectively to.Distance-detecting rope 4
It totally ten, is connected between ground wire crossing frame 11 and the corresponding traveling wheel XZL of conductor overhead supporter for surmounting 12.The two of bearing rope 3
End is fixed on interim pole 2, and three-dimensional across unit 1 for carrying, the three-dimensional two sides across unit 1 are respectively set unrestrained
Rope 5, camera is installed on 3 in bearing rope and (camera is not shown in the figure).
The bearing rope 3 of the present embodiment is woven using PBO material, and distance-detecting rope 4 uses cotton synthetic fibre rope.
Rolling bearing can be used in closed link on other embodiments leading block or other components replace, and need to only make
Insulation connecting-rods with constant lengh and insulated telescopic rods can roll.
Since conducting wire and ground wire of the invention can slide on corresponding leading block, thus the present invention be both applicable to it is non-
Tension stringing is also applied for tension stringing.
The present embodiment is in use, power circuit such as to be set up will cross over power circuit shown in fig. 5, so will be in A tower
Installation between B tower lives across system for ground wire and wire erection in the top for being spanned power circuit, specific installation
Steps are as follows:
One, it installs three-dimensional across net
(1) interim pole is installed
Below the earth wire support of A tower and B tower and cross-arm place beneath installs interim pole respectively.
(2) traction rope of bearing rope is unfolded
Operating personnel starts unmanned plane below A tower, carries a light-high-strength insulation traction rope by remote controlled drone
To B tower.
(3) bearing rope is unfolded
It is fixed on and is twisted after the traction rope of step (2) is unfolded to B tower, ten PBO bearing ropes are connected in A tower and are led
On messenger, ten PBO bearing ropes are unfolded from A tower to B tower simultaneously by being twisted.
(4) bearing rope is installed
Four bearing ropes as two ground wires in step (3) in ten bearing ropes, remaining six roots of sensation bearing rope is as three
The bearing rope of root conducting wire, it is sliding around the hanging wire on interim pole at A tower and B tower respectively after being arranged according to ground wire and lead location
Wheel, and fixed in shaft tower place beneath.
(5) the three-dimensional traction rope across net is installed
A traction rope is respectively unfolded at three-phase conducting wire and two earth wire support positions with unmanned plane, and by the two of each traction rope
End is individually fixed on the interim pole at A tower and B tower.
(6) ground wire crossing frame and conductor overhead supporter for surmounting are assembled
Ground wire crossing frame and conductor overhead supporter for surmounting are assembled, below A tower with two ground wire crossing frames and three conductor overhead supporter for surmounting
It is assembled, is cooperated up and down, and ground wire crossing frame and conductor overhead supporter for surmounting are separately mounted in corresponding bearing rope for one group.
(7) it assembles three-dimensional across unit
Two ground wire crossing frames and three conductor overhead supporter for surmounting are connected group by the length that insulated telescopic rods are adjusted on tower
It is three-dimensional across unit at one, two three-dimensional units of crossing over are assembled.
(8) it assembles each three-dimensional across unit
Connection distance-detecting rope forms three-dimensional leap between traveling wheel of the adjacent cube formula across unit corresponding position
Net.
(9) it installs three-dimensional across net
It is connected the traction rope of step (5) unfolding as tricing line and three-dimensional net of crossing over, it, will be whole by adjusting tricing line
A three-dimensional net of crossing over is mounted between A tower and B tower by cross-line road side and is adjusted in place, by the both ends of tricing line respectively in A
It tightens and fixes on the tower leg of tower and B tower.
(10) unrestrained rope is installed
Totally two, unrestrained rope is separately mounted to the three-dimensional two sides across net.One end of every unrestrained rope is connected to solid
Formula fixes on earth anchor across the appropriate location of net outside bearing rope, the other end, to enhance the three-dimensional stability across net
And its width is crossed over, avoid being influenced during payingoff construction by wind-force and is swung.
(11) camera is installed
Suitable position is found above crossed line, and camera is installed in bearing rope every 5-6 meters.
Two, payingoff construction
The intelligence control system of the present embodiment mainly includes data acquisition module, data transmission module, intelligent control module
Three parts.
Data acquisition module includes dragger, tensioner state data acquisition device, is led, ground wire stretching force data acquisition dress
It sets, stringing walking plate position data acquisition device, Crossover phase video data acquiring device.
Dragger, tensioner state data acquisition device by existing distraction force machine carry out data-interface transformation, will lead,
The data such as tensioner output power, payingoff speed, reel slot number are collected, and are sent it in transmission module.
Lead, ground wire distraction force data acquisition device be lead, the line outlet of tensioner installation tension sensor, can be real
When feedback lead, ground wire tension data, and send it in data transmission module.
Stringing walking plate position location data acquisition device uses Beidou satellite alignment system, carries out to stringing walking plate position real
Shi Dingwei, and to control base station Real-time Feedback position data.
Crossover phase video data acquiring device is the camera being mounted on three-dimensional crossover device ontology, which can incite somebody to action
Video data is sent in data transmission module.
Data transmission module realizes wireless private network transmission, realizes control base station and lead, open by establishing wireless data private network
The transmission of power machine data, control base station and stringing walking plate data are transmitted, control base station and crossing frame video data transmission.
Intelligent control module, that is, control base station, including a laptop and control software.Controlling includes number in software
According to display area and calculate control area, data display area can real-time display dragger and tensioner status data, conducting wire and
Ground wire laying tension data, stringing walking plate position data, Crossover phase video data.Calculate control area can according to walk Board position and
Lead, ground wire tension data calculate Crossover phase lead, ground wire arc sag and tension, and be compared with safe arc sag and tension, once
Overtension or arc sag are excessive, and control base station sounds an alarm, and it is big reversely to extrapolate the distraction force that distraction force machine should export at this time
Small, construction personnel goes out control instruction to distraction force machine, it is ensured that payingoff construction lives across safety.
When specific payingoff construction, comprising the following steps:
(1) start intelligent control software, it is ensured that software can Real-time Feedback each section data information.
(2) start dragger and tensioner starts unwrapping wire, respectively correspond ground wire and conducting wire at corresponding leading block.When
Stringing walking plate traction ground wire and conducting wire be when passing through Crossover phase, in control base station can Real-time Feedback conducting wire and ground wire arc sag and tension,
And be compared analysis with tension and safe arc sag is allowed, guarantee that conducting wire and ground line tension are allowing in tension range, conducting wire with
Ground wire arc sag is in safe arc sag.
(3) when lead, line tension close on allow tension or sag of conductor and ground wire to close on safe arc sag when, control base station issues report
Alert sound.And reversely extrapolate the distraction force size that distraction force machine at this time should export.
(4) construction personnel issues control to dragger and tensioner by control software according to the data shown in base station
Instruction, dragger and tensioner adjust output power.
Three, it removes three-dimensional across net
To all conducting and ground wire unwrapping wire finish and sag adjustment it is good after, remove it is three-dimensional cross over net.It removes
Sequence with when installation on the contrary, first removing three-dimensional leap net and tricing line, then end and step by bearing rope in A tower side
(2) the traction rope connection unfolded, in B tower side by being twisted withdrawal bearing rope, after bearing rope is removed from traction rope, passes through nothing
It is man-machine to take back traction rope.
Claims (9)
1. a kind of payingoff construction spanning the transmission line road lives across system, it is characterised in that: this system includes interim pole, holds
Carry rope, distance-detecting rope, unrestrained rope, camera and it is several it is three-dimensional cross over unit, it is three-dimensional across unit include the leaps of two ground wires
Frame and three conductor overhead supporter for surmounting, two ground wire crossing frames are arranged side by side, and two ground are arranged side by side in three conductor overhead supporter for surmounting pair
The lower section of line crossing frame passes through insulation connecting-rods with constant lengh connection, adjacent ground wire crossing frame and conducting wire between adjacent conductor overhead supporter for surmounting
It is connected between crossing frame by insulated telescopic rods；It is adjacent it is three-dimensional across connected between unit by distance-detecting rope to be formed it is three-dimensional
Across net, interim pole is fixed on shaft tower, and the both ends of bearing rope are fixed on interim pole, for carrying three-dimensional leap
Unrestrained rope is respectively set in net, the three-dimensional two sides across net；Camera is installed in bearing rope for Real-time Feedback.
2. payingoff construction spanning the transmission line as described in claim 1 road lives across system, it is characterised in that: the insulation
The both ends of connecting-rods with constant lengh and insulated telescopic rods are connected separately with hook.
3. payingoff construction spanning the transmission line as claimed in claim 2 road lives across system, it is characterised in that: the ground wire
Crossing frame and conductor overhead supporter for surmounting include two traveling wheels, a leading block and two insulation connecting-rods with constant lenghs, two rows
It walks pulley and passes through the two sides that insulation connecting-rods with constant lengh is symmetrically connected to leading block respectively.
4. payingoff construction spanning the transmission line as claimed in claim 3 road lives across system, it is characterised in that: the ground wire
The two sides of crossing frame leading block are symmetrically connected with four closed links, are respectively used to be connected to the insulation connecting-rods with constant lengh and absolutely
Edge telescopic rod；The two sides of the conductor overhead supporter for surmounting leading block symmetrically connect two closed links, are respectively used to the insulation
Connecting-rods with constant lengh.
5. payingoff construction spanning the transmission line as claimed in claim 3 road lives across system, it is characterised in that: the ground wire
Closed link there are two being all connected on the traveling wheel of crossing frame and conductor overhead supporter for surmounting, is respectively used to connect the insulation fixed length
Bar and insulated telescopic rods.
6. payingoff construction spanning the transmission line as described in claim 1 road lives across system, it is characterised in that: the carrying
Rope is woven using PBO material, described three-dimensional across net for carrying.
7. payingoff construction spanning the transmission line as described in claim 1 road lives across system, it is characterised in that: the spacing
Rope is cotton synthetic fibre rope, is connected between the ground wire crossing frame and the traveling wheel of conductor overhead supporter for surmounting between leading block.
8. payingoff construction spanning the transmission line as described in claim 1 road lives across system, it is characterised in that: described interim
Pole has four, is divided to two groups, the hanging wire pulley for unfolding ground wire and conducting wire is connected on the interim pole of one of every group.
9. payingoff construction spanning the transmission line as described in claim 1 road lives across system, it is characterised in that: described is
System further includes intelligence control system, and intelligence control system includes part of data acquisition, TCP data segment and intelligent control part；
Part of data acquisition includes dragger, tensioner state data acquisition module, is led, ground wire distraction force data acquisition module, unwrapping wire
Limp position data acquisition module and Crossover phase video data acquiring module；Data are sent by the video data of the camera
In transmission module；Data transmission module sends data to intelligent control part analysis processing by wireless network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821323380.2U CN208596907U (en) | 2018-08-16 | 2018-08-16 | A kind of payingoff construction spanning the transmission line road lives across system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821323380.2U CN208596907U (en) | 2018-08-16 | 2018-08-16 | A kind of payingoff construction spanning the transmission line road lives across system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208596907U true CN208596907U (en) | 2019-03-12 |
Family
ID=65605010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821323380.2U Active CN208596907U (en) | 2018-08-16 | 2018-08-16 | A kind of payingoff construction spanning the transmission line road lives across system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208596907U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736377A (en) * | 2018-08-16 | 2018-11-02 | 国网湖南省电力有限公司 | A kind of payingoff construction spanning the transmission line road lives across system and its application process |
| CN111355188A (en) * | 2020-04-15 | 2020-06-30 | 中国电建集团四川工程有限公司 | Live crossing construction method for high-voltage line |
-
2018
- 2018-08-16 CN CN201821323380.2U patent/CN208596907U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736377A (en) * | 2018-08-16 | 2018-11-02 | 国网湖南省电力有限公司 | A kind of payingoff construction spanning the transmission line road lives across system and its application process |
| CN111355188A (en) * | 2020-04-15 | 2020-06-30 | 中国电建集团四川工程有限公司 | Live crossing construction method for high-voltage line |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108736377A (en) | A kind of payingoff construction spanning the transmission line road lives across system and its application process | |
| CN208596907U (en) | A kind of payingoff construction spanning the transmission line road lives across system | |
| CN203351105U (en) | High voltage line repair training teaching aid | |
| CN109599795A (en) | A kind of wire tensioning device of high force feed power transformation route | |
| CN105356366B (en) | Overhead transmission line foreign body eliminating apparatus | |
| CN103383400B (en) | A kind of insulation safety device preventability test device | |
| CN203056456U (en) | Power transmission line overhead guide ground wire patrol device | |
| CN206401811U (en) | A kind of leap net of crossing live-line Poling Construction | |
| CN105514867A (en) | Method for replacing V-shaped insulator string of power transmission line pole | |
| CN209016557U (en) | A kind of power line tension insulator gap bridge | |
| CN203722136U (en) | Insulation rope net apparatus for railway crossing tension stringing construction | |
| CN105977850A (en) | Anti-fall device for height operation on transformers | |
| CN206685794U (en) | A kind of device of 10kV circuits earth potential live replacing tension-resistant rod insulator | |
| CN205827180U (en) | Power grid regulation based on big data analysis runs security risk control platform | |
| CN213457157U (en) | Outdoor simulated conductor icing test system | |
| CN205159921U (en) | A insulating pole of embracing that is used for changing with electricity with many times transmission line strain insulator string in tower | |
| CN101697403B (en) | Construction method for spreading lead wire and earth wire in transmission line | |
| CN106300128B (en) | One kind changes double bundle conductor conductor spacer and puies forward the Line tool and application method | |
| CN203339566U (en) | Live-line work limited track cabin | |
| CN208370513U (en) | A kind of Novel solar protection device of hanging bag agaric greenhouse | |
| CN208368947U (en) | Portable lightning protection system | |
| CN203871501U (en) | Horizontal-installation ground wire apparatus for power transmission line | |
| CN106711841B (en) | A kind of transmission line wire substantially vibrates limit-type control method | |
| CN207136060U (en) | A kind of main frame and the solar energy electric shock type scarer of electric shock pole split arrangement | |
| CN102882176B (en) | Method for selecting erection height of lightning conductor of 10kV overhead distribution line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |